Home / 57,629.20-79,529.27-31,790.71

Finding the Fourth Proportional to 57,629.20, 79,529.27 and 31,790.71

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Solution

The fourth proportional to 57,629.20, 79,529.27 and 31,790.71 is: 43,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,629.20 : 79,529.27 = 31,790.71 : x
  2. Step 2: Convert to fraction form
    57,629.20/79,529.27 = 31,790.71/x
  3. Step 3: Cross multiply
    57,629.20x = 79,529.27 × 31,790.71
  4. Step 4: Simplify right side
    57,629.20x = 2,528,291,959.08
  5. Step 5: Solve for x
    x = 2,528,291,959.08/57,629.20
  6. Step 6: Final answer
    x = 43,871.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.